blob: f3a2002a0720295777238e29484b293383498bed (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015 Fujitsu. All Rights Reserved.
#
# FS QA Test 099
#
# Check for qgroup reserved space leaks caused by re-writing dirty ranges
# This bug has been present in btrfs qgroup for a long time
#
. ./common/preamble
_begin_fstest auto quick qgroup limit
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs btrfs
_require_scratch
_require_btrfs_qgroup_report
# Use big blocksize to ensure there is still enough space left for metadata
# space reserve.
BLOCKSIZE=$(( 2 * 1024 * 1024 )) # 2M block size
FILESIZE=$(( 128 * 1024 * 1024 )) # 128M file size
_scratch_mkfs >> $seqres.full 2>&1
_scratch_mount
_require_fs_space $SCRATCH_MNT $(($FILESIZE * 2 / 1024))
_run_btrfs_util_prog quota enable $SCRATCH_MNT
_run_btrfs_util_prog qgroup limit $FILESIZE 0/5 $SCRATCH_MNT
# loop 5 times without sync to ensure reserved space leak will happen
for i in `seq 1 5`; do
# Use 1/4 of the file size, to ensure even commit is trigger by
# dirty page threshold or commit interval, we should still be
# able to continue write
$XFS_IO_PROG -f -c "pwrite -b $BLOCKSIZE 0 $(($FILESIZE / 4))" \
$SCRATCH_MNT/foo | _filter_xfs_io
done
# Sync to make sure all the dirty pages are written to disk, which should
# free all the reserved space
sync
# remove the file and sync, to ensure all quota space freed
rm $SCRATCH_MNT/foo
sync
# We should be able to write $FILESIZE - $BLOCKSIZE data now
$XFS_IO_PROG -f -c "pwrite -b $BLOCKSIZE 0 $(($FILESIZE - $BLOCKSIZE))" \
$SCRATCH_MNT/foo | _filter_xfs_io
# success, all done
status=0
exit
|
